Red Hat Bugzilla – Bug 820335
Audio passthrough seems to be broken on F17 hosts
Last modified: 2012-05-26 03:09:38 EDT
It seems like audio passthrough is completely broken on my F17 host. I've tried several guests and I can hear sound from none of them. The guests think sound is working fine - pavucontrol shows apps playing sound, in Linux guests - but on the host, no sound is heard, and pavucontrol doesn't think any app is playing audio. This is with various guests all configured and run through virt-manager. I have no kind of weird config tweaks, I'm just a dumbnuts OOTB GUI user. Audio passthrough used to work on this host machine, though I can't recall precisely when it broke. I just compared with my laptop, which is running F16 - if I create a guest on that and boot an F17 live image on it, audio passthrough works fine. Laine Stump confirmed on IRC that guests on his F17 host don't seem to have working audio passthrough either. How would one go about debugging this? I'm not really sure where to start.
For a more scientific test, I've just moved a working guest image and configuration from an F16 host (where sound was working) over to an F17 host. Sound in the guest stopped working (sound *is* working for applications running directly on the host).
Can you try with any other client? virt-viewer for eaxmple? I think this is a recent regression in python bindings (which doesn't use the public constructor somehow) 2012-05-10 01:56:48,884 (cli:83): Uncaught exception: Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/console.py", line 475, in _channel_new_cb self.audio = spice.Audio(self.spice_session) TypeError: GObject.__init__() takes exactly 0 arguments (1 given)
Well diagnosed! virt-viewer does provide working audio from the guest. So what is the fix?
spice-gtk update coming
spice-gtk-0.12-3.fc17 has been submitted as an update for Fedora 17. https://admin.fedoraproject.org/updates/spice-gtk-0.12-3.fc17
Package spice-gtk-0.12-3.fc17: * should fix your issue, * was pushed to the Fedora 17 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing spice-gtk-0.12-3.fc17' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-7639/spice-gtk-0.12-3.fc17 then log in and leave karma (feedback).
spice-gtk-0.12-3.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.